PLASTICS ARE A MIXED BAG for the classic-auto enthusiast. On the one hand, they can be formed into complex shapes at low cost, they’re lightweight, and they’re pretty durable (at least when new). On the other hand, they don’t age well, especially when repeatedly heat cycled or bombarded with ultraviolet light. As newer cars age, keeping them around is going to involve repairing or replacing all that aged plastic. My wife’s 1983 Cadillac Sedan de Ville is a prime example.
If you hadn’t followed the saga